A kind of industrial device and method for continuous production of graphene powder

An industrial device, a graphene powder technology, applied in the field of nanomaterials to achieve the effects of improving preparation efficiency, avoiding environmental pollution, and avoiding energy waste

Active Publication Date: 2015-12-16
XIAMEN KNANO GRAPHENE TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to propose an industrial device and method for continuous production of graphene powder, which has the advantages of uninterrupted continuous production, simple equipment, simple and feasible operation, easy to realize automation and industrial production, and can solve the problem of high-quality graphite The problem of large-scale production of olefin

Method used

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  • A kind of industrial device and method for continuous production of graphene powder
  • A kind of industrial device and method for continuous production of graphene powder
  • A kind of industrial device and method for continuous production of graphene powder

Examples

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Effect test

Embodiment example 1

[0041] Step 1: place expanded graphite, ethanol, water, sodium dodecylbenzenesulfonate in liquid storage tank 1, sodium dodecylbenzenesulfonate content 0.01%, graphite content 1%, the proportioning of water and ethanol is 3:1, the above-mentioned substances are fully stirred to obtain a uniform graphite premixed solution, and at the same time, the microcrystalline cellulose adhesive solution is prepared in the mixing tank 6, and the concentration is 0.01%;

[0042] Step 2: Control the flow valve, flow the above-mentioned premixed liquid into the microwave reactor 4 through the pipeline at a speed of 100L / h, turn on 8 concentrated-energy ultrasonic probes to participate in the work, and use the same frequency method to peel off the graphite, the frequency is 20kH at a low frequency 1. Adjust the output power of the microwave reactor to 200W, and obtain the graphene dispersion in the liquid storage tank 7;

[0043] Step 3: Control the flow rate of the flow valve of the mixing ta...

Embodiment example 2

[0050] Step 1: Expanded graphite, water, ethylene glycol, and sodium citrate are placed in liquid storage tank 1, the content of sodium citrate is 0.01%, the content of graphite is 1%, and the ratio of water and ethylene glycol is 4:1. The material is fully stirred to obtain a uniform graphite premixed solution, and a carboxymethyl cellulose adhesive solution is prepared in the mixing tank 6 at the same time, and the concentration is 0.01%;

[0051] Step 2: Control the flow valve, flow the above-mentioned premixed liquid into the microwave reactor through the pipeline at a speed of 150L / h, turn on 8 concentrated ultrasonic probes to participate in the work, and use the frequency mixing method to peel off the graphite, the frequency is 20kH, 30kH, 40kH, 50kH, 20kH, 30kH, 40kH, 50kH, adjust the output power of the microwave reactor to be 300W, and obtain the graphene dispersion in the liquid storage tank 7;

[0052] Step 3: Control the flow rate of the flow valve of the mixing t...

Embodiment example 3

[0059] Step 1: Put expanded graphite, water, N-methylpyrrolidone, and sodium lauryl sulfate in liquid storage tank 1, the content of sodium lauryl sulfate is 0.01%, the content of graphite is 2%, water and N-methylpyrrolidone The proportioning ratio is 4:1, the above-mentioned substances are fully stirred to obtain a uniform graphite premixed solution, and the polyacrylic resin adhesive solution is prepared in the mixing tank 6 at the same time, and the concentration is 0.02%;

[0060] Step 2: Control the flow valve, flow the above-mentioned premixed liquid into the microwave reactor through the pipeline at a speed of 200L / h, turn on 8 concentrated ultrasonic probes to participate in the work, and use the frequency mixing method to peel off the graphite, the frequency is 20kH, 30kH, 40kH, 20kH, 30kH, 40kH, 20kH, 20kH, adjust the output power of the microwave reactor to be 250W, and obtain the graphene dispersion in the liquid storage tank 7;

[0061] Step 3: Control the flow r...

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Abstract

The invention discloses an industrial device for continuously producing graphene powder and a method thereof. The device comprises a liquid storage tank, a flow valve, a plurality of ultrasonic processors, a microwave reaction kettle, a vibrating screen, a mixing tank, a reservoir, a booster pump, a spray drying tower and a cyclone centrifuge. The method for preparing graphene comprises the following steps: adjusting the surface tension by controlling the proportion of a dispersant, thus obtaining evenly dispersed grapheme through the synergistic effect of continuous ultrasonic and micro waves after evenly mixing with graphite; adding a bonding solution to graphene dispersion liquid to prepare slurry; carrying out spray drying and pelleting on the slurry by adopting centrifugal spray drying equipment. Large-scale production of the graphene is achieved by adopting a continuous ultrasonic-micro wave combined mode, pelleting of the graphene can be achieved by combining with spray drying, the environmental pollution is reduced, and transportation and application are facilitated.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials and relates to a method for industrially preparing graphene, in particular to an industrial device for continuously producing graphene powder and a method thereof. Background technique [0002] Graphene is a single-layer sheet structure material composed of carbon atoms. It has attracted extensive attention from researchers because of its advantages such as high strength, high thermal conductivity, high electrical conductivity, and high specific surface area. At present, there are mainly the following methods for preparing graphene at home and abroad: [0003] (1) Micromechanical exfoliation method; the graphene produced by this method is of high quality, but only a limited number of graphene sheets can be obtained, which is only suitable for exploring the electrical properties of graphene as a basic research. [0004] (2) Epitaxial growth method; the preparation conditions of this me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/04C01B32/19
Inventor 江龙迎邱淑璇洪江彬钱文枝方崇卿
Owner XIAMEN KNANO GRAPHENE TECH CORP
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